TRACIO counts devices per account with hardware-level precision — surviving incognito, cookie clears, and browser switches. Sharing gets caught. Legitimate multi-device use doesn't.
TRACIO gives you a reliable device-per-account count so you can enforce seat limits without false positives.
Every authenticated session is linked to a hardware-level device identifier that survives cookie clears, incognito mode, and browser switches.
TRACIO maintains a rolling device count per account. Legitimate multi-device usage (phone, laptop, tablet) is tracked accurately.
When an account exceeds its device limit, TRACIO flags the session. You decide the action: soft warning, forced logout, or upgrade prompt.
30-day rolling windows automatically accommodate device upgrades and replacements. Users are not penalized for getting a new phone or laptop.
Password sharing costs subscription businesses billions annually. Netflix's crackdown proved the revenue is real — but enforcing device limits requires accurate device counting, and most platforms cannot do it.
Cookie-based tracking is trivially bypassed: clearing cookies, switching browsers, or opening incognito creates a 'new' device. Conversely, a legitimate user on one device can appear as multiple devices after browser updates or cookie expiration — generating false positives that punish paying customers.
Persistent device identification solves both problems. When every browser session is linked back to the same physical hardware, you get an accurate device count per account — regardless of cookies, incognito mode, or browser switches.
From casual password sharing to organized resale, TRACIO identifies every pattern with device-level precision.
Family members or roommates share a single account. TRACIO counts distinct physical devices, letting you distinguish 2-device families from 20-device sharing rings.
Stolen or shared credentials sold on forums generate logins from dozens of unique devices across multiple geographies. Device count spikes make this instantly detectable.
Users open incognito windows to bypass session limits. TRACIO's hardware-level signals identify the same device regardless of browser privacy mode.
Power users create separate browser profiles to appear as different devices. TRACIO sees through profile isolation because the underlying hardware signals remain constant.
Results based on industry benchmarks and published case studies.
accuracy identifying shared accounts
Parks Associates Streaming Analytics, 2024
subscription revenue lift from enforcement
Antenna / Netflix Q1 2024 Earnings analysis
false flag rate on legitimate multi-device users
Fingerprint Device Intelligence Report, 2026
rolling window accommodates device replacement
Industry best practice, 2024
Results vary by industry, subscriber base, and enforcement strategy. Figures represent ranges observed across published research and case studies.
in streaming-industry revenue projected to be lost to password sharing and piracy by 2024. After enforcing its account-sharing restrictions, Netflix added roughly 50M paying subscribers over the 19 months that followed.
Parks Associates 2019 forecast; Netflix Q1 2023–Q4 2024 earnings
Count real hardware, not cookies. The stable device ID holds across privacy mode, browser rotation, and OS upgrades — 99.5% recognition accuracy.
Real-time count of unique devices per account with configurable rolling windows. Distinguish sharing from legitimate multi-device use.
Trigger upgrade flows, soft warnings, or hard blocks when device limits are exceeded. A/B test enforcement strategies with device-level segmentation.
Combine device identity with IP geolocation to flag simultaneous usage from implausible locations — the hallmark of credential sharing.
Dashboard showing device distribution per account tier. Identify which plans have the highest sharing rates and model revenue impact.
30-day rolling window automatically accommodates device replacements. Users who upgrade phones or laptops are never penalized.
A few lines of code, one API response with everything you need.
import { Tracio } from '@tracio/sdk'// Initialize on page loadconst tracio = Tracio.init({ publicKey: "5ca175fc..." })// Read the identification result on the authenticated sessionconst result = await tracio.getResult()// Check device count for this accountconst res = await fetch("/api/account/device-check", { method: "POST", body: JSON.stringify({ visitorId: result.visitorId, accountId: user.accountId, planDeviceLimit: user.plan.maxDevices, }),})Related products
Related reading
Cross-Device Tracking: Linking Sessions Without LoginFree plan, no credit card, no engineering integration beyond 3 lines of code. See sharing patterns from day one, enforcement decisions by day 7.